UnfailingIterator.java

package client.net.sf.saxon.ce.tree.iter;

import client.net.sf.saxon.ce.om.SequenceIterator;
import client.net.sf.saxon.ce.om.Item;


/**
 * A SequenceIterator is used to iterate over a sequence. An UnfailingIterator
 * is a SequenceIterator that throws no checked exceptions.
 */

public interface UnfailingIterator extends SequenceIterator {

    /**
     * Get the next item in the sequence. <BR>
     * @return the next Item. If there are no more nodes, return null.
     */

    public Item next();

    /**
     * Get the current item in the sequence.
     *
     * @return the current item, that is, the item most recently returned by
     *     next()
     */

    public Item current();

    /**
     * Get the current position
     *
     * @return the position of the current item (the item most recently
     *     returned by next()), starting at 1 for the first node
     */

    public int position();

    /**
     * Get another iterator over the same sequence of items, positioned at the
     * start of the sequence. It must be possible to call this method at any time, whether
     * none, some, or all of the items in the original iterator have been read. The method
     * is non-destructive: it does not change the state of the original iterator.
     * @return a new iterator over the same sequence
     */

    public SequenceIterator getAnother();

}



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// This Source Code Form is “Incompatible With Secondary Licenses”, as defined by the Mozilla Public License, v. 2.0.